The fact that so many people still smoke in public place _______that we may need antionwide campaign to raise awareness of the riks of smoking

It________me about 10 days_______painting the walls.

Please spend much time ____your school work, ___ your parents will be annoyed.—OK. I’ll do it as you say!

David, you clean the blackboard today, ____?— With pleasure. I cleaned it yesterday, though.[ ]

Where is Jack —I noticed that he ________the teacher’soffice just now.